A. lowest temperature at which oil will flow under set condition
B. storage temperature
C. temperature at which fuel is pumped through burners
D. temperature at which oil is transported
E. none of the above
Related Mcqs:
- The pour point of diesel oil must be_________________?
A. lower than the coldest atmospheric temperature at which oil is to be pumped
B. higher than above
C. has no such relation
D. more than 100°C
E. none of the above - The specific fuel consumption for a petrol engine first decreases with increase in fuel air ratio and then increases with further increase in fuel air ratio. The minimum value occurs in the range of__________________?
A. lean mixture
B. chemically correct mixture
C. rich mixture
D. unpredictable
E. none of the above - Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value ___________________?
A. (1- moisture content)
B. (1 + moisture content)
C. 1 + moisture content
D. 1 – moisture content - Water and sediment in fuel oil can be removed by _______________________?
A. heating the oil in the settling tanks
B. cooling the oil in the settling tanks
C. burning the oil
D. suspension
E. filtering - Presence of moisture in fuel oil would____________________?
A. keep the burner tips cool
B. aid in proper combustion
C. cause sputtering, possibly extinguish¬ing flame
D. clean the nozzles
E. reduce flame length - Which is correct statement about reaction time for autoignition of fuel and the fuel air ratio__________________?
A. lean mixture has high reaction time
B. rich mixture has high reaction time
C. chemically correct mixture has mini-mum reaction time
D. all of the above
E. non of the above - Auto-ignition reaction time for petrol engine first decreases with increase in fuel air ratio, reaches a minimum value and then increases with subsequent increase in fuel air ratio. The minimum value occurs in the region of________________?
A. Lean mixture
B. Chemically correct fuel air ratio
C. Rich mixture
D. Unpredictable - The m.e.p. of a petrol engine first increases as the fuel air ratio is increased and then decreases on further increase in fuel air ratio. The M.E.P is maximum in the zone of________________?
A. lean mixture
B. chemically correct mixture
C. rich mixture
D. unpredictable
E. none of the above - Ignition quality of diesel-fuel oil is expressed by an index called__________________?
A. octane number
B. cetane number
C. calorific value
D. carbon content
E. ignition temperature - If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be_________________?
A. 2 meters of water column
B. 3 meters of water column
C. 5 meters of water column
D. 6 meters of water Column
E. 7 meters of water column
